Mercurial > hg > nginx
annotate src/http/modules/ngx_http_range_filter_module.c @ 6986:0cdee26605f3
Cleaned up r->headers_out.headers allocation error handling.
If initialization of a header failed for some reason after ngx_list_push(),
leaving the header as is can result in uninitialized memory access by
the header filter or the log module. The fix is to clear partially
initialized headers in case of errors.
For the Cache-Control header, the fix is to postpone pushing
r->headers_out.cache_control until its value is completed.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Thu, 20 Apr 2017 18:26:37 +0300 |
parents | 2decd6b34306 |
children | aeaac3ccee4f |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_http.h> |
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11 |
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12 |
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13 /* |
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14 * the single part format: |
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15 * |
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16 * "HTTP/1.0 206 Partial Content" CRLF |
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17 * ... header ... |
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18 * "Content-Type: image/jpeg" CRLF |
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19 * "Content-Length: SIZE" CRLF |
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20 * "Content-Range: bytes START-END/SIZE" CRLF |
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21 * CRLF |
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22 * ... data ... |
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23 * |
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24 * |
5538 | 25 * the multipart format: |
160
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26 * |
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27 * "HTTP/1.0 206 Partial Content" CRLF |
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28 * ... header ... |
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29 * "Content-Type: multipart/byteranges; boundary=0123456789" CRLF |
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30 * CRLF |
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31 * CRLF |
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32 * "--0123456789" CRLF |
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33 * "Content-Type: image/jpeg" CRLF |
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34 * "Content-Range: bytes START0-END0/SIZE" CRLF |
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35 * CRLF |
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36 * ... data ... |
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37 * CRLF |
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38 * "--0123456789" CRLF |
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39 * "Content-Type: image/jpeg" CRLF |
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40 * "Content-Range: bytes START1-END1/SIZE" CRLF |
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41 * CRLF |
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42 * ... data ... |
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43 * CRLF |
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44 * "--0123456789--" CRLF |
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45 */ |
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46 |
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47 |
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48 typedef struct { |
963
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49 off_t start; |
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50 off_t end; |
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51 ngx_str_t content_range; |
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52 } ngx_http_range_t; |
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53 |
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54 |
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55 typedef struct { |
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56 off_t offset; |
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57 ngx_str_t boundary_header; |
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58 ngx_array_t ranges; |
99
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59 } ngx_http_range_filter_ctx_t; |
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60 |
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61 |
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62 static ngx_int_t ngx_http_range_parse(ngx_http_request_t *r, |
4062 | 63 ngx_http_range_filter_ctx_t *ctx, ngx_uint_t ranges); |
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64 static ngx_int_t ngx_http_range_singlepart_header(ngx_http_request_t *r, |
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65 ngx_http_range_filter_ctx_t *ctx); |
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66 static ngx_int_t ngx_http_range_multipart_header(ngx_http_request_t *r, |
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67 ngx_http_range_filter_ctx_t *ctx); |
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68 static ngx_int_t ngx_http_range_not_satisfiable(ngx_http_request_t *r); |
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69 static ngx_int_t ngx_http_range_test_overlapped(ngx_http_request_t *r, |
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70 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in); |
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71 static ngx_int_t ngx_http_range_singlepart_body(ngx_http_request_t *r, |
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72 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in); |
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73 static ngx_int_t ngx_http_range_multipart_body(ngx_http_request_t *r, |
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74 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in); |
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75 |
681 | 76 static ngx_int_t ngx_http_range_header_filter_init(ngx_conf_t *cf); |
77 static ngx_int_t ngx_http_range_body_filter_init(ngx_conf_t *cf); | |
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78 |
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79 |
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80 static ngx_http_module_t ngx_http_range_header_filter_module_ctx = { |
509 | 81 NULL, /* preconfiguration */ |
681 | 82 ngx_http_range_header_filter_init, /* postconfiguration */ |
177
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83 |
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84 NULL, /* create main configuration */ |
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85 NULL, /* init main configuration */ |
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86 |
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87 NULL, /* create server configuration */ |
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88 NULL, /* merge server configuration */ |
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89 |
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90 NULL, /* create location configuration */ |
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91 NULL, /* merge location configuration */ |
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92 }; |
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93 |
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94 |
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95 ngx_module_t ngx_http_range_header_filter_module = { |
509 | 96 NGX_MODULE_V1, |
334
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97 &ngx_http_range_header_filter_module_ctx, /* module context */ |
99
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98 NULL, /* module directives */ |
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99 NGX_HTTP_MODULE, /* module type */ |
541 | 100 NULL, /* init master */ |
681 | 101 NULL, /* init module */ |
541 | 102 NULL, /* init process */ |
103 NULL, /* init thread */ | |
104 NULL, /* exit thread */ | |
105 NULL, /* exit process */ | |
106 NULL, /* exit master */ | |
107 NGX_MODULE_V1_PADDING | |
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108 }; |
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109 |
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110 |
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111 static ngx_http_module_t ngx_http_range_body_filter_module_ctx = { |
509 | 112 NULL, /* preconfiguration */ |
681 | 113 ngx_http_range_body_filter_init, /* postconfiguration */ |
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114 |
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115 NULL, /* create main configuration */ |
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116 NULL, /* init main configuration */ |
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diff
changeset
|
117 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
118 NULL, /* create server configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
119 NULL, /* merge server configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
120 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
121 NULL, /* create location configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
122 NULL, /* merge location configuration */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
123 }; |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
124 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
125 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
126 ngx_module_t ngx_http_range_body_filter_module = { |
509 | 127 NGX_MODULE_V1, |
334
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
128 &ngx_http_range_body_filter_module_ctx, /* module context */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
129 NULL, /* module directives */ |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
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parents:
314
diff
changeset
|
130 NGX_HTTP_MODULE, /* module type */ |
541 | 131 NULL, /* init master */ |
681 | 132 NULL, /* init module */ |
541 | 133 NULL, /* init process */ |
134 NULL, /* init thread */ | |
135 NULL, /* exit thread */ | |
136 NULL, /* exit process */ | |
137 NULL, /* exit master */ | |
138 NGX_MODULE_V1_PADDING | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
139 }; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
140 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
141 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
142 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
143 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
144 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
145 |
493 | 146 static ngx_int_t |
147 ngx_http_range_header_filter(ngx_http_request_t *r) | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
148 { |
4745
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Entity tags: support in If-Range header.
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diff
changeset
|
149 time_t if_range_time; |
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Entity tags: support in If-Range header.
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diff
changeset
|
150 ngx_str_t *if_range, *etag; |
5621
345e4fd4bb64
Range filter: single_range flag in request.
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parents:
5558
diff
changeset
|
151 ngx_uint_t ranges; |
4062 | 152 ngx_http_core_loc_conf_t *clcf; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
153 ngx_http_range_filter_ctx_t *ctx; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
154 |
160
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
155 if (r->http_version < NGX_HTTP_VERSION_10 |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
156 || r->headers_out.status != NGX_HTTP_OK |
6317 | 157 || (r != r->main && !r->subrequest_ranges) |
153
c71aeb75c071
nginx-0.0.1-2003-10-21-20:49:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
136
diff
changeset
|
158 || r->headers_out.content_length_n == -1 |
581 | 159 || !r->allow_ranges) |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
160 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
161 return ngx_http_next_header_filter(r); |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
162 } |
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
163 |
4062 | 164 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); |
165 | |
166 if (clcf->max_ranges == 0) { | |
167 return ngx_http_next_header_filter(r); | |
168 } | |
169 | |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
170 if (r->headers_in.range == NULL |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
171 || r->headers_in.range->value.len < 7 |
1107
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1093
diff
changeset
|
172 || ngx_strncasecmp(r->headers_in.range->value.data, |
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1093
diff
changeset
|
173 (u_char *) "bytes=", 6) |
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
1093
diff
changeset
|
174 != 0) |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
175 { |
1630 | 176 goto next_filter; |
177 } | |
178 | |
4741
5ea8c710c532
Fixed If-Range with unknown last modified time.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4467
diff
changeset
|
179 if (r->headers_in.if_range) { |
5ea8c710c532
Fixed If-Range with unknown last modified time.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4467
diff
changeset
|
180 |
4745
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Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
181 if_range = &r->headers_in.if_range->value; |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
182 |
4750
149634c98d67
Entity tags: empty etags handling in If-Range.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4745
diff
changeset
|
183 if (if_range->len >= 2 && if_range->data[if_range->len - 1] == '"') { |
4745
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
184 |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
185 if (r->headers_out.etag == NULL) { |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
186 goto next_filter; |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
187 } |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
188 |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
189 etag = &r->headers_out.etag->value; |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
190 |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
191 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
192 "http ir:%V etag:%V", if_range, etag); |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
193 |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
194 if (if_range->len != etag->len |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
195 || ngx_strncmp(if_range->data, etag->data, etag->len) != 0) |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
196 { |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
197 goto next_filter; |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
198 } |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
199 |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
200 goto parse; |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
201 } |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
202 |
4741
5ea8c710c532
Fixed If-Range with unknown last modified time.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4467
diff
changeset
|
203 if (r->headers_out.last_modified_time == (time_t) -1) { |
5ea8c710c532
Fixed If-Range with unknown last modified time.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4467
diff
changeset
|
204 goto next_filter; |
5ea8c710c532
Fixed If-Range with unknown last modified time.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4467
diff
changeset
|
205 } |
1630 | 206 |
6180
8b6fa4842133
Moved ngx_http_parse_time() to core, renamed accordingly.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6013
diff
changeset
|
207 if_range_time = ngx_parse_http_time(if_range->data, if_range->len); |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
208 |
1630 | 209 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
6480 | 210 "http ir:%T lm:%T", |
4745
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
211 if_range_time, r->headers_out.last_modified_time); |
117
f6e3c5d019b6
nginx-0.0.1-2003-07-11-19:17:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
113
diff
changeset
|
212 |
4745
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
213 if (if_range_time != r->headers_out.last_modified_time) { |
1630 | 214 goto next_filter; |
215 } | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
216 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
217 |
4745
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4741
diff
changeset
|
218 parse: |
4752060ca462
Entity tags: support in If-Range header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
219 |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
962
diff
changeset
|
220 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_range_filter_ctx_t)); |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
962
diff
changeset
|
221 if (ctx == NULL) { |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
962
diff
changeset
|
222 return NGX_ERROR; |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
962
diff
changeset
|
223 } |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
224 |
6317 | 225 ctx->offset = r->headers_out.content_offset; |
226 | |
5621
345e4fd4bb64
Range filter: single_range flag in request.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5558
diff
changeset
|
227 ranges = r->single_range ? 1 : clcf->max_ranges; |
345e4fd4bb64
Range filter: single_range flag in request.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5558
diff
changeset
|
228 |
345e4fd4bb64
Range filter: single_range flag in request.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5558
diff
changeset
|
229 switch (ngx_http_range_parse(r, ctx, ranges)) { |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
230 |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
231 case NGX_OK: |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
232 ngx_http_set_ctx(r, ctx, ngx_http_range_body_filter_module); |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
233 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
234 r->headers_out.status = NGX_HTTP_PARTIAL_CONTENT; |
2592
3a8a53c0c42f
a prelimiary proxy cache support
Igor Sysoev <igor@sysoev.ru>
parents:
2536
diff
changeset
|
235 r->headers_out.status_line.len = 0; |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
236 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
237 if (ctx->ranges.nelts == 1) { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
238 return ngx_http_range_singlepart_header(r, ctx); |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
239 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
240 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
241 return ngx_http_range_multipart_header(r, ctx); |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
242 |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
243 case NGX_HTTP_RANGE_NOT_SATISFIABLE: |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
244 return ngx_http_range_not_satisfiable(r); |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
245 |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
246 case NGX_ERROR: |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
247 return NGX_ERROR; |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
248 |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
249 default: /* NGX_DECLINED */ |
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
250 break; |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
251 } |
c1f589732d8c
split ngx_http_range_filter_module
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252 |
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253 next_filter: |
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254 |
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255 r->headers_out.accept_ranges = ngx_list_push(&r->headers_out.headers); |
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256 if (r->headers_out.accept_ranges == NULL) { |
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257 return NGX_ERROR; |
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258 } |
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259 |
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260 r->headers_out.accept_ranges->hash = 1; |
3516
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261 ngx_str_set(&r->headers_out.accept_ranges->key, "Accept-Ranges"); |
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262 ngx_str_set(&r->headers_out.accept_ranges->value, "bytes"); |
2118
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263 |
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264 return ngx_http_next_header_filter(r); |
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265 } |
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266 |
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267 |
4058
d32a2000b766
ngx_http_range_parse() should be static.
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268 static ngx_int_t |
4062 | 269 ngx_http_range_parse(ngx_http_request_t *r, ngx_http_range_filter_ctx_t *ctx, |
270 ngx_uint_t ranges) | |
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271 { |
6317 | 272 u_char *p; |
273 off_t start, end, size, content_length, cutoff, | |
274 cutlim; | |
275 ngx_uint_t suffix; | |
276 ngx_http_range_t *range; | |
277 ngx_http_range_filter_ctx_t *mctx; | |
278 | |
279 if (r != r->main) { | |
280 mctx = ngx_http_get_module_ctx(r->main, | |
281 ngx_http_range_body_filter_module); | |
282 if (mctx) { | |
283 ctx->ranges = mctx->ranges; | |
284 return NGX_OK; | |
285 } | |
286 } | |
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287 |
6798
2decd6b34306
Range filter: only initialize ctx->ranges in main request.
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288 if (ngx_array_init(&ctx->ranges, r->pool, 1, sizeof(ngx_http_range_t)) |
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289 != NGX_OK) |
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290 { |
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291 return NGX_ERROR; |
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292 } |
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293 |
99
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294 p = r->headers_in.range->value.data + 6; |
4035
c2a91088b0c0
Now if total size of all ranges is greater than source response size,
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295 size = 0; |
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296 content_length = r->headers_out.content_length_n; |
99
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297 |
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298 cutoff = NGX_MAX_OFF_T_VALUE / 10; |
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299 cutlim = NGX_MAX_OFF_T_VALUE % 10; |
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300 |
99
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301 for ( ;; ) { |
231
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302 start = 0; |
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303 end = 0; |
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304 suffix = 0; |
99
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305 |
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306 while (*p == ' ') { p++; } |
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307 |
231
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308 if (*p != '-') { |
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309 if (*p < '0' || *p > '9') { |
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310 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
231
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311 } |
99
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312 |
231
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313 while (*p >= '0' && *p <= '9') { |
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314 if (start >= cutoff && (start > cutoff || *p - '0' > cutlim)) { |
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315 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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316 } |
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|
317 |
231
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318 start = start * 10 + *p++ - '0'; |
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319 } |
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320 |
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321 while (*p == ' ') { p++; } |
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322 |
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323 if (*p++ != '-') { |
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324 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
231
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|
325 } |
99
a059e1aa65d4
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|
326 |
231
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327 while (*p == ' ') { p++; } |
99
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|
328 |
231
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329 if (*p == ',' || *p == '\0') { |
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|
330 end = content_length; |
4055
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|
331 goto found; |
99
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|
332 } |
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|
333 |
231
92db0aa1e83f
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334 } else { |
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335 suffix = 1; |
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|
336 p++; |
99
a059e1aa65d4
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|
337 } |
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|
338 |
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|
339 if (*p < '0' || *p > '9') { |
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340 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
99
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|
341 } |
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|
342 |
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|
343 while (*p >= '0' && *p <= '9') { |
6013
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|
344 if (end >= cutoff && (end > cutoff || *p - '0' > cutlim)) { |
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Overflow detection in ngx_http_range_parse().
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|
345 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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|
346 } |
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|
347 |
99
a059e1aa65d4
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|
348 end = end * 10 + *p++ - '0'; |
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|
349 } |
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|
350 |
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|
351 while (*p == ' ') { p++; } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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|
352 |
a059e1aa65d4
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|
353 if (*p != ',' && *p != '\0') { |
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|
354 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
99
a059e1aa65d4
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|
355 } |
a059e1aa65d4
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changeset
|
356 |
231
92db0aa1e83f
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diff
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|
357 if (suffix) { |
4057
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|
358 start = content_length - end; |
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|
359 end = content_length - 1; |
231
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360 } |
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|
361 |
4057
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Ranges processing small optimization.
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|
362 if (end >= content_length) { |
3205a6d6c6ec
Ranges processing small optimization.
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|
363 end = content_length; |
4055
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Ranges processing small optimization.
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diff
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|
364 |
9cce506be97d
Ranges processing small optimization.
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|
365 } else { |
9cce506be97d
Ranges processing small optimization.
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|
366 end++; |
9cce506be97d
Ranges processing small optimization.
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|
367 } |
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Ranges processing small optimization.
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|
368 |
9cce506be97d
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diff
changeset
|
369 found: |
9cce506be97d
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diff
changeset
|
370 |
4060
45de8d258085
*) fix of r4060: start value should be tested after the "found" label;
Igor Sysoev <igor@sysoev.ru>
parents:
4059
diff
changeset
|
371 if (start < end) { |
4061
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
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diff
changeset
|
372 range = ngx_array_push(&ctx->ranges); |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
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|
373 if (range == NULL) { |
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Style fix: removal of tabs introduced in the previous commit.
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|
374 return NGX_ERROR; |
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Style fix: removal of tabs introduced in the previous commit.
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changeset
|
375 } |
461 | 376 |
4061
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
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diff
changeset
|
377 range->start = start; |
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
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parents:
4060
diff
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|
378 range->end = end; |
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379 |
4061
bd2ec6ce5d58
Style fix: removal of tabs introduced in the previous commit.
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380 size += end - start; |
4062 | 381 |
4063
8d70904b6c48
Now if client requests more ranges than "max_ranges" permits,
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382 if (ranges-- == 0) { |
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383 return NGX_DECLINED; |
4062 | 384 } |
4060
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*) fix of r4060: start value should be tested after the "found" label;
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385 } |
4056
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386 |
231
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387 if (*p++ != ',') { |
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388 break; |
231
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389 } |
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390 } |
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391 |
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392 if (ctx->ranges.nelts == 0) { |
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393 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
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394 } |
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395 |
4057
3205a6d6c6ec
Ranges processing small optimization.
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396 if (size > content_length) { |
4035
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397 return NGX_DECLINED; |
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398 } |
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399 |
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400 return NGX_OK; |
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401 } |
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402 |
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403 |
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404 static ngx_int_t |
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405 ngx_http_range_singlepart_header(ngx_http_request_t *r, |
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406 ngx_http_range_filter_ctx_t *ctx) |
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407 { |
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408 ngx_table_elt_t *content_range; |
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409 ngx_http_range_t *range; |
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410 |
6317 | 411 if (r != r->main) { |
412 return ngx_http_next_header_filter(r); | |
413 } | |
414 | |
2118
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415 content_range = ngx_list_push(&r->headers_out.headers); |
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416 if (content_range == NULL) { |
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417 return NGX_ERROR; |
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418 } |
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419 |
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420 r->headers_out.content_range = content_range; |
461 | 421 |
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422 content_range->hash = 1; |
3516
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423 ngx_str_set(&content_range->key, "Content-Range"); |
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424 |
2118
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425 content_range->value.data = ngx_pnalloc(r->pool, |
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426 sizeof("bytes -/") - 1 + 3 * NGX_OFF_T_LEN); |
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427 if (content_range->value.data == NULL) { |
6986
0cdee26605f3
Cleaned up r->headers_out.headers allocation error handling.
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|
428 content_range->hash = 0; |
0cdee26605f3
Cleaned up r->headers_out.headers allocation error handling.
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429 r->headers_out.content_range = NULL; |
2118
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430 return NGX_ERROR; |
461 | 431 } |
432 | |
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433 /* "Content-Range: bytes SSSS-EEEE/TTTT" header */ |
461 | 434 |
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435 range = ctx->ranges.elts; |
461 | 436 |
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437 content_range->value.len = ngx_sprintf(content_range->value.data, |
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438 "bytes %O-%O/%O", |
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439 range->start, range->end - 1, |
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440 r->headers_out.content_length_n) |
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441 - content_range->value.data; |
461 | 442 |
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443 r->headers_out.content_length_n = range->end - range->start; |
6317 | 444 r->headers_out.content_offset = range->start; |
461 | 445 |
2118
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446 if (r->headers_out.content_length) { |
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447 r->headers_out.content_length->hash = 0; |
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448 r->headers_out.content_length = NULL; |
461 | 449 } |
450 | |
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451 return ngx_http_next_header_filter(r); |
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452 } |
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453 |
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|
454 |
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|
455 static ngx_int_t |
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|
456 ngx_http_range_multipart_header(ngx_http_request_t *r, |
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|
457 ngx_http_range_filter_ctx_t *ctx) |
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458 { |
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|
459 size_t len; |
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|
460 ngx_uint_t i; |
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|
461 ngx_http_range_t *range; |
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|
462 ngx_atomic_uint_t boundary; |
461 | 463 |
493 | 464 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
465 + sizeof(CRLF "Content-Type: ") - 1 | |
509 | 466 + r->headers_out.content_type.len |
461 | 467 + sizeof(CRLF "Content-Range: bytes ") - 1; |
468 | |
5558
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|
469 if (r->headers_out.content_type_len == r->headers_out.content_type.len |
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470 && r->headers_out.charset.len) |
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471 { |
461 | 472 len += sizeof("; charset=") - 1 + r->headers_out.charset.len; |
473 } | |
474 | |
2049 | 475 ctx->boundary_header.data = ngx_pnalloc(r->pool, len); |
501 | 476 if (ctx->boundary_header.data == NULL) { |
461 | 477 return NGX_ERROR; |
478 } | |
479 | |
493 | 480 boundary = ngx_next_temp_number(0); |
461 | 481 |
482 /* | |
483 * The boundary header of the range: | |
484 * CRLF | |
485 * "--0123456789" CRLF | |
486 * "Content-Type: image/jpeg" CRLF | |
487 * "Content-Range: bytes " | |
488 */ | |
489 | |
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|
490 if (r->headers_out.content_type_len == r->headers_out.content_type.len |
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|
491 && r->headers_out.charset.len) |
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|
492 { |
461 | 493 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
493 | 494 CRLF "--%0muA" CRLF |
461 | 495 "Content-Type: %V; charset=%V" CRLF |
496 "Content-Range: bytes ", | |
497 boundary, | |
509 | 498 &r->headers_out.content_type, |
461 | 499 &r->headers_out.charset) |
500 - ctx->boundary_header.data; | |
501 | |
2119
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502 } else if (r->headers_out.content_type.len) { |
461 | 503 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
493 | 504 CRLF "--%0muA" CRLF |
461 | 505 "Content-Type: %V" CRLF |
506 "Content-Range: bytes ", | |
507 boundary, | |
509 | 508 &r->headers_out.content_type) |
461 | 509 - ctx->boundary_header.data; |
2119
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|
510 |
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|
511 } else { |
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512 ctx->boundary_header.len = ngx_sprintf(ctx->boundary_header.data, |
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|
513 CRLF "--%0muA" CRLF |
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|
514 "Content-Range: bytes ", |
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515 boundary) |
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516 - ctx->boundary_header.data; |
461 | 517 } |
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518 |
509 | 519 r->headers_out.content_type.data = |
2049 | 520 ngx_pnalloc(r->pool, |
521 sizeof("Content-Type: multipart/byteranges; boundary=") - 1 | |
522 + NGX_ATOMIC_T_LEN); | |
165
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diff
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|
523 |
509 | 524 if (r->headers_out.content_type.data == NULL) { |
461 | 525 return NGX_ERROR; |
526 } | |
99
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|
527 |
2882
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changeset
|
528 r->headers_out.content_type_lowcase = NULL; |
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529 |
461 | 530 /* "Content-Type: multipart/byteranges; boundary=0123456789" */ |
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|
531 |
509 | 532 r->headers_out.content_type.len = |
533 ngx_sprintf(r->headers_out.content_type.data, | |
493 | 534 "multipart/byteranges; boundary=%0muA", |
461 | 535 boundary) |
509 | 536 - r->headers_out.content_type.data; |
160
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|
537 |
2882
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|
538 r->headers_out.content_type_len = r->headers_out.content_type.len; |
493 | 539 |
5558
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|
540 r->headers_out.charset.len = 0; |
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541 |
461 | 542 /* the size of the last boundary CRLF "--0123456789--" CRLF */ |
493 | 543 |
544 len = sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN + sizeof("--" CRLF) - 1; | |
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545 |
963
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546 range = ctx->ranges.elts; |
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547 for (i = 0; i < ctx->ranges.nelts; i++) { |
455 | 548 |
461 | 549 /* the size of the range: "SSSS-EEEE/TTTT" CRLF CRLF */ |
455 | 550 |
461 | 551 range[i].content_range.data = |
2049 | 552 ngx_pnalloc(r->pool, 3 * NGX_OFF_T_LEN + 2 + 4); |
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553 |
461 | 554 if (range[i].content_range.data == NULL) { |
555 return NGX_ERROR; | |
556 } | |
99
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Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
557 |
461 | 558 range[i].content_range.len = ngx_sprintf(range[i].content_range.data, |
559 "%O-%O/%O" CRLF CRLF, | |
560 range[i].start, range[i].end - 1, | |
561 r->headers_out.content_length_n) | |
562 - range[i].content_range.data; | |
160
e7e094d34162
nginx-0.0.1-2003-10-27-11:53:49 import
Igor Sysoev <igor@sysoev.ru>
parents:
155
diff
changeset
|
563 |
461 | 564 len += ctx->boundary_header.len + range[i].content_range.len |
565 + (size_t) (range[i].end - range[i].start); | |
566 } | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
567 |
461 | 568 r->headers_out.content_length_n = len; |
960 | 569 |
570 if (r->headers_out.content_length) { | |
571 r->headers_out.content_length->hash = 0; | |
572 r->headers_out.content_length = NULL; | |
573 } | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
574 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
575 return ngx_http_next_header_filter(r); |
2118
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
576 } |
1630 | 577 |
578 | |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
579 static ngx_int_t |
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split ngx_http_range_filter_module
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parents:
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changeset
|
580 ngx_http_range_not_satisfiable(ngx_http_request_t *r) |
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parents:
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diff
changeset
|
581 { |
c1f589732d8c
split ngx_http_range_filter_module
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2049
diff
changeset
|
582 ngx_table_elt_t *content_range; |
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
583 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
584 r->headers_out.status = NGX_HTTP_RANGE_NOT_SATISFIABLE; |
c1f589732d8c
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parents:
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diff
changeset
|
585 |
c1f589732d8c
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parents:
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diff
changeset
|
586 content_range = ngx_list_push(&r->headers_out.headers); |
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changeset
|
587 if (content_range == NULL) { |
1630 | 588 return NGX_ERROR; |
589 } | |
590 | |
2118
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2049
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changeset
|
591 r->headers_out.content_range = content_range; |
c1f589732d8c
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diff
changeset
|
592 |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
593 content_range->hash = 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3331
diff
changeset
|
594 ngx_str_set(&content_range->key, "Content-Range"); |
1630 | 595 |
2118
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split ngx_http_range_filter_module
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2049
diff
changeset
|
596 content_range->value.data = ngx_pnalloc(r->pool, |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
597 sizeof("bytes */") - 1 + NGX_OFF_T_LEN); |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
598 if (content_range->value.data == NULL) { |
6986
0cdee26605f3
Cleaned up r->headers_out.headers allocation error handling.
Sergey Kandaurov <pluknet@nginx.com>
parents:
6798
diff
changeset
|
599 content_range->hash = 0; |
0cdee26605f3
Cleaned up r->headers_out.headers allocation error handling.
Sergey Kandaurov <pluknet@nginx.com>
parents:
6798
diff
changeset
|
600 r->headers_out.content_range = NULL; |
2118
c1f589732d8c
split ngx_http_range_filter_module
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diff
changeset
|
601 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
602 } |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
603 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
604 content_range->value.len = ngx_sprintf(content_range->value.data, |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
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diff
changeset
|
605 "bytes */%O", |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
606 r->headers_out.content_length_n) |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
607 - content_range->value.data; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
608 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
609 ngx_http_clear_content_length(r); |
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
610 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
611 return NGX_HTTP_RANGE_NOT_SATISFIABLE; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
612 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
613 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
614 |
493 | 615 static ngx_int_t |
616 ngx_http_range_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
617 { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
618 ngx_http_range_filter_ctx_t *ctx; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
619 |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
620 if (in == NULL) { |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
621 return ngx_http_next_body_filter(r, in); |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
622 } |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
623 |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
624 ctx = ngx_http_get_module_ctx(r, ngx_http_range_body_filter_module); |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
625 |
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
626 if (ctx == NULL) { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
627 return ngx_http_next_body_filter(r, in); |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
628 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
629 |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
630 if (ctx->ranges.nelts == 1) { |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
631 return ngx_http_range_singlepart_body(r, ctx, in); |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
632 } |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
633 |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
634 /* |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
635 * multipart ranges are supported only if whole body is in a single buffer |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
636 */ |
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
637 |
962
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
638 if (ngx_buf_special(in->buf)) { |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
639 return ngx_http_next_body_filter(r, in); |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
640 } |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
641 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
642 if (ngx_http_range_test_overlapped(r, ctx, in) != NGX_OK) { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
643 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
644 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
645 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
646 return ngx_http_range_multipart_body(r, ctx, in); |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
647 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
648 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
649 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
650 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
651 ngx_http_range_test_overlapped(ngx_http_request_t *r, |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
652 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
653 { |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
654 off_t start, last; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
655 ngx_buf_t *buf; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
656 ngx_uint_t i; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
657 ngx_http_range_t *range; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
658 |
962
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
659 if (ctx->offset) { |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
660 goto overlapped; |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
661 } |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
662 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
663 buf = in->buf; |
960 | 664 |
665 if (!buf->last_buf) { | |
4467
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
666 start = ctx->offset; |
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
667 last = ctx->offset + ngx_buf_size(buf); |
962
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
668 |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
669 range = ctx->ranges.elts; |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
Igor Sysoev <igor@sysoev.ru>
parents:
962
diff
changeset
|
670 for (i = 0; i < ctx->ranges.nelts; i++) { |
962
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
671 if (start > range[i].start || last < range[i].end) { |
6474 | 672 goto overlapped; |
960 | 673 } |
674 } | |
675 } | |
676 | |
962
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
677 ctx->offset = ngx_buf_size(buf); |
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
678 |
2118
c1f589732d8c
split ngx_http_range_filter_module
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parents:
2049
diff
changeset
|
679 return NGX_OK; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
680 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
681 overlapped: |
960 | 682 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
683 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
684 "range in overlapped buffers"); |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
685 |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
686 return NGX_ERROR; |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
687 } |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
688 |
962
69754fb59ba1
support ranges for single memory buffer
Igor Sysoev <igor@sysoev.ru>
parents:
961
diff
changeset
|
689 |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
690 static ngx_int_t |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
691 ngx_http_range_singlepart_body(ngx_http_request_t *r, |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
692 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
693 { |
2121
b39c0040b3e4
support several buf's for single-part range
Igor Sysoev <igor@sysoev.ru>
parents:
2119
diff
changeset
|
694 off_t start, last; |
2118
c1f589732d8c
split ngx_http_range_filter_module
Igor Sysoev <igor@sysoev.ru>
parents:
2049
diff
changeset
|
695 ngx_buf_t *buf; |
2121
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696 ngx_chain_t *out, *cl, **ll; |
2118
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697 ngx_http_range_t *range; |
960 | 698 |
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699 out = NULL; |
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700 ll = &out; |
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701 range = ctx->ranges.elts; |
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702 |
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|
703 for (cl = in; cl; cl = cl->next) { |
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|
704 |
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705 buf = cl->buf; |
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|
706 |
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707 start = ctx->offset; |
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|
708 last = ctx->offset + ngx_buf_size(buf); |
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709 |
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|
710 ctx->offset = last; |
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711 |
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|
712 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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|
713 "http range body buf: %O-%O", start, last); |
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|
714 |
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|
715 if (ngx_buf_special(buf)) { |
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716 *ll = cl; |
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717 ll = &cl->next; |
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|
718 continue; |
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|
719 } |
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|
720 |
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|
721 if (range->end <= start || range->start >= last) { |
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|
722 |
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|
723 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
b39c0040b3e4
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724 "http range body skip"); |
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|
725 |
2269 | 726 if (buf->in_file) { |
727 buf->file_pos = buf->file_last; | |
728 } | |
729 | |
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|
730 buf->pos = buf->last; |
2269 | 731 buf->sync = 1; |
732 | |
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733 continue; |
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|
734 } |
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|
735 |
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|
736 if (range->start > start) { |
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737 |
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738 if (buf->in_file) { |
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739 buf->file_pos += range->start - start; |
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740 } |
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|
741 |
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|
742 if (ngx_buf_in_memory(buf)) { |
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743 buf->pos += (size_t) (range->start - start); |
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744 } |
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|
745 } |
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|
746 |
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|
747 if (range->end <= last) { |
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|
748 |
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|
749 if (buf->in_file) { |
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750 buf->file_last -= last - range->end; |
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751 } |
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|
752 |
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|
753 if (ngx_buf_in_memory(buf)) { |
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754 buf->last -= (size_t) (last - range->end); |
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|
755 } |
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|
756 |
6722
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Do not set last_buf flag in subrequests.
Roman Arutyunyan <arut@nginx.com>
parents:
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changeset
|
757 buf->last_buf = (r == r->main) ? 1 : 0; |
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|
758 buf->last_in_chain = 1; |
2121
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759 *ll = cl; |
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|
760 cl->next = NULL; |
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|
761 |
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changeset
|
762 break; |
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changeset
|
763 } |
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|
764 |
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765 *ll = cl; |
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766 ll = &cl->next; |
960 | 767 } |
768 | |
2121
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|
769 if (out == NULL) { |
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|
770 return NGX_OK; |
2118
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|
771 } |
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|
772 |
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|
773 return ngx_http_next_body_filter(r, out); |
2118
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|
774 } |
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|
775 |
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|
776 |
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|
777 static ngx_int_t |
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|
778 ngx_http_range_multipart_body(ngx_http_request_t *r, |
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|
779 ngx_http_range_filter_ctx_t *ctx, ngx_chain_t *in) |
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|
780 { |
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|
781 ngx_buf_t *b, *buf; |
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|
782 ngx_uint_t i; |
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|
783 ngx_chain_t *out, *hcl, *rcl, *dcl, **ll; |
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|
784 ngx_http_range_t *range; |
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changeset
|
785 |
960 | 786 ll = &out; |
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|
787 buf = in->buf; |
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|
788 range = ctx->ranges.elts; |
160
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|
789 |
963
78e70dae89f0
move ranges array to ngx_http_range_filter_ctx_t
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parents:
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diff
changeset
|
790 for (i = 0; i < ctx->ranges.nelts; i++) { |
99
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diff
changeset
|
791 |
960 | 792 /* |
793 * The boundary header of the range: | |
794 * CRLF | |
795 * "--0123456789" CRLF | |
796 * "Content-Type: image/jpeg" CRLF | |
797 * "Content-Range: bytes " | |
798 */ | |
799 | |
800 b = ngx_calloc_buf(r->pool); | |
801 if (b == NULL) { | |
802 return NGX_ERROR; | |
99
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|
803 } |
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parents:
diff
changeset
|
804 |
960 | 805 b->memory = 1; |
806 b->pos = ctx->boundary_header.data; | |
807 b->last = ctx->boundary_header.data + ctx->boundary_header.len; | |
160
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|
808 |
960 | 809 hcl = ngx_alloc_chain_link(r->pool); |
810 if (hcl == NULL) { | |
811 return NGX_ERROR; | |
812 } | |
461 | 813 |
960 | 814 hcl->buf = b; |
99
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|
815 |
461 | 816 |
960 | 817 /* "SSSS-EEEE/TTTT" CRLF CRLF */ |
160
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|
818 |
501 | 819 b = ngx_calloc_buf(r->pool); |
820 if (b == NULL) { | |
461 | 821 return NGX_ERROR; |
822 } | |
823 | |
343
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parents:
335
diff
changeset
|
824 b->temporary = 1; |
960 | 825 b->pos = range[i].content_range.data; |
826 b->last = range[i].content_range.data + range[i].content_range.len; | |
827 | |
828 rcl = ngx_alloc_chain_link(r->pool); | |
829 if (rcl == NULL) { | |
830 return NGX_ERROR; | |
831 } | |
832 | |
833 rcl->buf = b; | |
834 | |
835 | |
836 /* the range data */ | |
461 | 837 |
960 | 838 b = ngx_calloc_buf(r->pool); |
839 if (b == NULL) { | |
840 return NGX_ERROR; | |
841 } | |
842 | |
962
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|
843 b->in_file = buf->in_file; |
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|
844 b->temporary = buf->temporary; |
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|
845 b->memory = buf->memory; |
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diff
changeset
|
846 b->mmap = buf->mmap; |
960 | 847 b->file = buf->file; |
848 | |
962
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changeset
|
849 if (buf->in_file) { |
4467
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
850 b->file_pos = buf->file_pos + range[i].start; |
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
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diff
changeset
|
851 b->file_last = buf->file_pos + range[i].end; |
962
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|
852 } |
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|
853 |
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changeset
|
854 if (ngx_buf_in_memory(buf)) { |
4467
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4412
diff
changeset
|
855 b->pos = buf->pos + (size_t) range[i].start; |
85a1570ce960
Removed r->cache/r->cached dependencies in range filter.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
856 b->last = buf->pos + (size_t) range[i].end; |
962
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changeset
|
857 } |
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diff
changeset
|
858 |
960 | 859 dcl = ngx_alloc_chain_link(r->pool); |
860 if (dcl == NULL) { | |
461 | 861 return NGX_ERROR; |
862 } | |
863 | |
960 | 864 dcl->buf = b; |
461 | 865 |
155
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153
diff
changeset
|
866 *ll = hcl; |
960 | 867 hcl->next = rcl; |
868 rcl->next = dcl; | |
869 ll = &dcl->next; | |
870 } | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
871 |
960 | 872 /* the last boundary CRLF "--0123456789--" CRLF */ |
873 | |
874 b = ngx_calloc_buf(r->pool); | |
875 if (b == NULL) { | |
876 return NGX_ERROR; | |
877 } | |
878 | |
879 b->temporary = 1; | |
880 b->last_buf = 1; | |
881 | |
2049 | 882 b->pos = ngx_pnalloc(r->pool, sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN |
883 + sizeof("--" CRLF) - 1); | |
960 | 884 if (b->pos == NULL) { |
885 return NGX_ERROR; | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
886 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
887 |
1195
4ba6df5d5b53
fix multipart ranges trailing
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
888 b->last = ngx_cpymem(b->pos, ctx->boundary_header.data, |
4ba6df5d5b53
fix multipart ranges trailing
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
889 sizeof(CRLF "--") - 1 + NGX_ATOMIC_T_LEN); |
960 | 890 *b->last++ = '-'; *b->last++ = '-'; |
891 *b->last++ = CR; *b->last++ = LF; | |
892 | |
893 hcl = ngx_alloc_chain_link(r->pool); | |
894 if (hcl == NULL) { | |
895 return NGX_ERROR; | |
896 } | |
897 | |
898 hcl->buf = b; | |
899 hcl->next = NULL; | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
900 |
960 | 901 *ll = hcl; |
902 | |
903 return ngx_http_next_body_filter(r, out); | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
904 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
905 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
906 |
493 | 907 static ngx_int_t |
681 | 908 ngx_http_range_header_filter_init(ngx_conf_t *cf) |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
909 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
910 ngx_http_next_header_filter = ngx_http_top_header_filter; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
911 ngx_http_top_header_filter = ngx_http_range_header_filter; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
912 |
334
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
913 return NGX_OK; |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
914 } |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
915 |
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
916 |
493 | 917 static ngx_int_t |
681 | 918 ngx_http_range_body_filter_init(ngx_conf_t *cf) |
334
af451db3fe99
nginx-0.0.3-2004-05-12-09:37:55 import
Igor Sysoev <igor@sysoev.ru>
parents:
314
diff
changeset
|
919 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
153
diff
changeset
|
920 ngx_http_next_body_filter = ngx_http_top_body_filter; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
921 ngx_http_top_body_filter = ngx_http_range_body_filter; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
922 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
923 return NGX_OK; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
924 } |